Automatic cock-operating device for steam-engines.



No. 735,633. PATENTED AUG. 4, 1903 0. WEI TZEL.

AUTOMATIC COCK OPERATING DEVICE FOR STEAM ENGINES. APPLICATION FILED JAN. 23. 1901.

N0 MODEL.

WITNESSES.

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No.' 735,633. Patented August 4, 1903 UNITED STATES PATENT OFFICE.

OSCAR WEITZEL, OF THAMESVILLE, CANADA, ASSIGNOR OF ONE-HALF TO JOSEPH DENT, OF THAMESVILLE, CANADA.

AUTOMATIC COCK-OPERATING DEVICE FOR STEAM-ENGINES.

SPECIFICATION forming part of Letters Patent N 0. 735,633, dated August 4, 1903. Application filed January 23, 1901. erial No. 44,354. (No model.)

T at whom it may con/067%: in the art, said valves or plug-cocks being Be it known that I, OSCAR VVEITZEL, acitiadapted -to be operated by the handles 4.

zen of the Dominion of Oanadafresiding at Mounted upon the engine-bed through the Thamesville, inthe county of Kent, Province medium of a projecting bracket or other- 5 of Ontario,Oanada,haveinvented certain new wise suitably located is a small auxiliary cyl- 5 and useful Improvements in Automatic Gockinder 6, having'a reciprocatory piston 7 there Operating Devices for Steam-Engines; and I in, mounted upon a piston-rod 8, whose opdo declare the following to be a full, clear, and posite ends extend through the opposite ends exact description of theinvention, such as will of said cylinder. Upon one end of said cyl- IO enable others skilled in the artto which itapinder is a screw-cap 9, having a stuffing-box 6o pertains to make and use the same, reference 10, through which said piston rod passes. being bad to the accompanying drawings, and Within said cylinder, between the piston and to the figures of reference marked thereon, the cap 9, is a steam-chamber 11. Upon the which form a part of this specification. opposite end of the auxiliary cylinder 6 is a :5 This invention relates to an automatic descrewcap 12, adapted to confine a coiled 6 vice for operating the steam-cocks of steamspring 13 between it and the piston 7. Said engine cylinders; and it consists in the conspring occupies one end of the auxiliary cylstruction and arrangement of parts hereininder and environs oneend of the piston-rod, after fully set forth, and pointed out particuwhich projects therefrom.

2o larlyin the claims. Attached to the opposite ends of the pis- 7c The object of the invention is to provide ton-rod 8 are the bell crank levers 14, which simple and efficient meansfor automatically are pivoted at to the engine-bed or other operating the steam-cocks of the cylinder, so suitable support and are pivotally coupled, as to prevent an accumulation therein of waby means of the connectingrods 16, to the ter of condensation and obviate the danger of handles 4 of the plug-cocks 3. 75 freezing and of other possible injury to the The main steam-pipe 17 communicates with cylinder 'by the presence within it of a quanthe cylinderflin the ordinary manner. Tapped tity of water; also, obviating the danger of into said main steam-pipe isa smaller steamburning the hands by a manual manipulapipe 18, which communicates with the steamtion of said cocks. chamber 11 in the auxiliary cylinder 6. 80

The above object is attained by the mech- When the engine is not running, the force anism illustrated in the accompanying dzaW- of the spring13'movcs the piston 7 longituings, in Which- I dinally in the cylinder hand operates the pis- Figure 1 is a plan view of a steam-engine ton-rod 8 to open the plug-cocks 3 through 3'; cylinder, showing the application of my inthe medium of the interposed levers and con- 85 vention thereto. Fig. 2 is a side elevation of meeting-rods, ,so that any accumulated water Fig. 1. Fig. 3 is an enlarged longitudinal may drain from the cylinder. Upon the section through the auxiliary cylinder adaptopening of the throttle in startingthe engine ed to actuate the steam-cocks of the main steam will occupy the main steam-pipe and 40 cylinder. Fig. 4 is an enlarged detail in secthe smaller pipe 18, through which it will flow 90 tion, showing the connection between the to the steam-chamberll in the auxiliary cylsteam-cock and interior of the main cylinder inder. The pressure of the steam in said cylthrough the head thereof. inder will overcome the resistance of the Referring to the characters of reference, 1 spring 13 and move the piston 7 longitudidesignates a portion of the engine-bed, upon nally in said cylinder to operate thepiston- 9: which the main cylinder 2 is mounted. Lo-. rod 8 and actuate the connected levers 14 to cated in the-opposite ends of said cylinder close the plug-cocks 3. The presence of are the steam-cocks 3, which afford means of steam in-the chamber 11 of the auxiliary cyldraining from the cylinder the accumulated inder will maintain said plug-cocks closed;

water of condensation, as is well understood but as soon as the steam is shut 0% from the too main steam-pipe 17 by the closing of the throttle said spring 13 will actuate the piston 7 and open the plug-cocks To provide for the escape of any water of condensation which may collect in the chamber 11 of the auxiliary cylinder, a drip-cock 19 is provided, which communicates with said chamber and has an operative lever 20, connected by a rod 21 with the piston 7, whereby upon the return of the piston 7 through the action of the spring 17 said cock will be opened to allow of the escape of the water of condensation from said chamber.

It will now be understood that the operation of the device is entirely automatic and that upon the opening and closing of the th rottle the cocks in the ends of. the cylinder are simultaneously actuated to close them when steam is supplied to the cylinder and to open when steam is cut oif therefrom.

Having thus fully set forth my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a device for the purpose set forth, the combination with a steam-cylinder having steam-cocks, a main steam-pipe connected with said cylinder and an auxiliary cylinder connected with said steam-pipe, a movable piston in said auxiliary cylinder adapted to be actuated-by the pressure of the steam in the main steam-pipe, a piston-rod connected with the piston of said auxiliary cylinder and adapted to-move therewith and means connecting said piston-rod with the steam-cocks of the main cylinder.

2. In a device for the purpose set forth, the combination of a main cylinder having a plug-cock in the end thereof, a main steampipe connected with said cylinder, means connected with said plug-cock, adapted by its actuation to open and close said cock, said cock-actuating means communicating with the main steam-pipe and adapted to be automatically actuated bya variation of pressure therein.

3. In a device for the purpose set forth, the combination with a main steam-cylinder having steam-cocks, of an auxiliary steamcylinder having a steam-chamber in one end and a spring in the opposite end, a cylindercock in said auxiliary cylinder, a piston-rod passing through the auxiliary cylinder and carrying a piston lying against said spring in said chamber, a pipe connecting said steamchamber with the main steam-pipe and means connecting said piston-rod with the cylindercocks of both cylinders.

In testimony whereof I sign this specification in the presence of two witnesses.

OSCAR VVEITZEL.

\Vitnesses:

E. S. WHEELER, 0. E. JosLIN. 

